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D-Σ数字控制在带LCL滤波器的单相双向逆变器中的扩展应用

Extended Application of D-Σ Digital Control to a Single-Phase Bidirectional Inverter With an LCL Filter

语言:

中文摘要

D-Σ数字控制此前已成功应用于LC滤波的单相双向逆变器,能有效应对电感波动并实现精确电流跟踪。针对高频纹波注入电网的问题,本文将其扩展至LCL滤波器架构,并重点解决了电网电压谐波干扰下的控制难题。

English Abstract

Division-summation (D-Σ) digital control has been successfully applied to the single-phase bidirectional inverter with an LC filter, which can cover wide inductance variation and achieve precise inverter current tracking. However, high frequency ripple current injection to the grid cannot be avoided, and an LCL filter is therefore required. Since there typically exist grid voltage harmonics, the ...
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SunView 深度解读

该技术对阳光电源的户用光伏逆变器及小型储能变流器(PCS)具有重要参考价值。LCL滤波器是提升并网电能质量的关键,而D-Σ控制算法在处理电感参数变化和电网谐波干扰方面表现出的鲁棒性,有助于优化公司产品的动态响应性能。建议研发团队评估该控制策略在iSolarCloud运维平台下的参数自适应能力,以提升产品在弱电网环境下的并网稳定性,进一步增强户用及工商业储能产品的核心竞争力。